In the properly prepared and evaluated patient with a body mass index at or under 35, one can consider safe removal of less than 5 liters of fat for an outpatient procedure. This parameter can vary from one state to another and from one ambulatory center accreditation body to another. Surgical judgment can change this value to a range of 2-5 liters for outpatient considerations. Staging the liposuction is often done for large volumes being removed under local anesthesia. While large volumes of 5-8 liters can be safely removed under the right circumstances, it is usually the younger healthier patient, one not considered obese or having an BMI over 30-35, is monitored by way of inhalation general anesthesia, has plans for retention overnight, does not combined major procedures included with the liposuction, and the patient is managed for lower extremity venous blood flow to avoid clots. A thorough preoperative exam, and battery of blood tests us usually required for liposuction with general anesthesia in one major session. Again, local anesthesia can permit staging of fat removal. It is however, best to reduce the general risk by losing weight and getting the BMI under 30 if possible, and have the procedure done by a Board Certified Plastic Surgeon in a properly credentialed ambulatory surgery or office center, when larger volumes of fat are considered to removal in one session. With all this said, the risks of high volume liposuction do increase when the volumes exceed 5 liters in one session. 5 to 8 liters equals 11 to 18 pounds of fat as a rule. Weight loss prior to liposuction should be tried in order to reduce anesthesia risk class, whether you be treated with local, sedation, or general anesthesia. Your BMI is clearly over 35. Discuss this with your attending surgeon.